I have some Qubino dimmers (they have 3 input channels, 1 dimmer and 2 other) and I have the same issue (I think). I created widgets for the first channel (the dimmer), and I can turn them on/off/dimm but if I set a timetable, it does not work.
I also created a sunset script, and I can see the script fires and if I get the name from the module I get name given to the widget but on/off/level does not work.
If I use Ste's trick it works, but I have to set the feature on the top level not the instance.
Shouldn't the instance work just like a regular module? The widget works so whats different?